1. Good sound,bring clear sound and amazing feeling
2. Light weight and easy to carry
3. Save more power: selected polymer lithium ion battery, adopt high TG sheet + 6 small circuit board, can save 30%
4. Ergonomic design,it is comfortable just like cotton
5. Function: answer / end / reject / transfer, call wait, redial, mute, multi-points connection, music play / pause, noice isolating
6. Wearing description: put earphone into external auditory canal as soon as possible,keep comfort; rotate the earphone at an angle until it into the ear